| actinomyces georgiae sp. nov., actinomyces gerencseriae sp. nov., designation of two genospecies of actinomyces naeslundii, and inclusion of a. naeslundii serotypes ii and iii and actinomyces viscosus serotype ii in a. naeslundii genospecies 2. | dnas of type strains and representative members of actinomyces groups from the human periodontal flora and from other habitats were compared by using the s1 nuclease procedure to determine their genetic relatedness. one rather common group from the human periodontal flora, previously called "actinomyces d08," is phenotypically distinct from, and genetically unrelated to, previously described species. we propose the name of actinomyces georgiae for this organism; the type strain is strain atcc 49 ... | 1990 | 2397195 |